exposing ResultStream in stt index

Author: nfriedly

speech-to-text/index.js

@@ -57,6 +57,11 @@ module.exports = {
    */
   TimingStream: require('./timing-stream'),
 
+  /**
+   * @see ResultStream
+   */
+  ResultStream: require('./result-stream'),
+
   /**
    * @see WritableElementStream
    */